VAL-MB-T2-750DC-2+V-R
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Type 2 surge arrester
1376160
Surge protective device, acc. to type 2/class II, for grounded, unipolar DC supply systems up to 800 V DC, for DIN rail mounting, with remote indication contact.
Product details
| Product type | Surge arrester |
| IEC test classification | T2 |
| EN type | T2 |
| IEC power supply system | DC |
| Type | DIN rail module, one-piece |
| Surge protection fault message | Optical, remote indicator contact |
| Insulation characteristics | |
| Overvoltage category | III |
| Pollution degree | 2 |
| Indicator/remote signaling | |
| Connection name | Remote fault indicator contact |
| Switching function | Changeover contact |
| Operating voltage | 5 V AC ... 250 V AC (Altitude ≤ 2000 m (amsl)) |
| 5 V DC ... 30 V DC (200 mA DC) | |
| Operating current | 5 mA AC ... 1.5 A AC |
| 5 mA DC ... 1 A DC | |
| Connection method | Screw connection |
| Screw thread | M5 |
| Tightening torque | 3 Nm |
| Stripping length | 16 mm |
| Conductor cross section flexible | 2.5 mm² ... 35 mm² |
| Conductor cross section AWG | 14 ... 2 |
| Remote fault indicator contact | |
| Connection method | Screw connection |
| Screw thread | M2 |
| Tightening torque | 0.25 Nm |
| Stripping length | 7 mm |
| Conductor cross section flexible | 0.14 mm² ... 1.5 mm² |
| Conductor cross section rigid | 0.14 mm² ... 1.5 mm² |
| Conductor cross section AWG | 28 ... 16 |
| Dimensional drawing |
|
| Width | 71.2 mm |
| Height | 120 mm |
| Depth | 65.5 mm (incl. DIN rail 7.5 mm) |
| Horizontal pitch | 4 Div. |
| Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V-0 |
| CTI value of material | 600 |
| Insulating material | PA 6.6 |
| PBT | |
| Housing material | PA 6.6 |
| Mode of protection | (DC+) - (DC-) |
| (DC+/DC-) - PE | |
| Direction of action | (L+)-PE & (L-)-PE & (L+)-(L-) |
| Nominal voltage UN | 750 V DC |
| Maximum continuous voltage UC | 800 V DC |
| Rated load current IL | 40 A |
| Protective conductor current IPE | ≤ 70 µA DC |
| ≤ 500 µA AC | |
| Standby power consumption PC | ≤ 70 mVA |
| Nominal discharge current In (8/20) µs | 20 kA |
| Maximum discharge current Imax (8/20) µs | 40 kA |
| Total discharge current ITotal (8/20) µs | 40 kA |
| Short-circuit current rating ISCCR | min. 1 kA DC (with maximum backup fuse 40 A gG/1200 V DC) |
| max. 4 kA DC (with maximum backup fuse 40 A gG/1200 V DC) | |
| Voltage protection level Up | ≤ 3.3 kV |
| Residual voltage Ures | ≤ 3.3 kV (at In) |
| ≤ 2.5 kV (at 3 kA) | |
| ≤ 2.7 kV (at 6.25 kA) | |
| ≤ 2.9 kV (at 10 kA) | |
| ≤ 3.1 kV (at 15 kA) | |
| ≤ 4 kV (at 40 kA) | |
| Response time tA | ≤ 25 ns |
| Max. backup fuse with branch wiring | 40 A (gG / 1200 V DC) |
| Ambient conditions | |
| Degree of protection | IP20 (only when all terminal points are used) |
| Ambient temperature (operation) | -40 °C ... 80 °C |
| Ambient temperature (storage/transport) | -40 °C ... 80 °C |
| Altitude | ≤ 6000 m (amsl) |
| Permissible humidity (operation) | 5 % ... 95 % |
| Shock (operation) | 50g (Half-sine / 11 ms / 3x ±X, ±Y, ±Z) |
| Vibration (operation) | 5g (5 - 500 Hz/2.5 h/X, Y, Z) |
| Standards/specifications | IEC 61643-31 |
| Note | 2018 |
| Standards/specifications | EN 61643-31 |
| Note | 2019 |
| Mounting type | DIN rail: 35 mm |
Your advantages
Safe operation of DC voltage supply systems thanks to reliable protection against surge voltages
For use in grounded, unipolar DC supply systems
Highly versatile with a maximum altitude up to 6000 m (amsl)
Space-saving installation, thanks to the compact design
Excellent level of information provided by mechanical/visual status indicator and remote indication contact